Fiber Modem 1.E1 digital interface(75/120ohm) 2.V.35 ... 35 switch over Multi-service Fiber Modem Introduction: The SPC-155M Multiservice Fiber Optic Modem is manufactured based on Spacecoms ... 120Ω)Provides a V.35 interface (N×64K, N= 1~32, support all the V.35 clock mode)Provides one ... for installation 1*E1+1*10/100M Base-Tx+1*V.35(N*64K),1*OW, 1*RS232,1*Console Multi-Service Optical Fiber Optic Modem